Geology simplified to 8 broad categories from OGS MRD126 bedrock compilation (Ontario Geological Survey vector data). Gaps indicate unmapped areas at this scale. Only units intersecting claim areas shown.
Note: this layer may show more geological detail than MLAS's claim-map basemap for the same area (e.g. a thin metasedimentary unit between gneiss/migmatite zones) — MLAS uses a generalized rendering for claim administration, not a geology-first source. Where the two differ, treat OGS MRD126 (used here) as the higher-resolution source; verify against OGS assessment files for anything decision-critical.